Patent US2327646A successfully refreshed from Google Patents.
US2327646A
Expired / Lapsed
US
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Paper punch
Assignee: Individual
•
Filing: 1941-06-09
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Granted: 1943-08-24
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Expires: 1961-06-09
Abstract
No abstract record available.
Inventors
- 👤 Hutchinson Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:20
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/32; B26F1/36; B26F1/02; B26F1/04; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8727; Y10T83/8729; Y10T83/8821; Y10T83/8828; Y10T83/8831; Y10T83/8834; Y10T83/8841; Y10T83/8843
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-08-23 | 1947-02-22 | 1947-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-23 | 1951-02-22 | 1951-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-23 | 1955-02-22 | 1955-08-24 | $7700.00 | Window Closed / Lapsed |